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This commit is contained in:
Behdad Esfahbod 2023-01-31 16:28:49 -07:00
parent 7a4bd97e4a
commit d18fd3f7eb
1 changed files with 5 additions and 0 deletions
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5
src/hb-ot-layout-gsubgpos.hh
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@ -4021,6 +4021,11 @@ struct hb_ot_layout_lookup_accelerator_t
HB_VAR_ARRAY * sizeof (hb_accelerate_subtables_context_t::hb_applicable_t) + HB_VAR_ARRAY * sizeof (hb_accelerate_subtables_context_t::hb_applicable_t) +
count * sizeof (hb_accelerate_subtables_context_t::hb_applicable_t); count * sizeof (hb_accelerate_subtables_context_t::hb_applicable_t);
/* The following is a calloc because when we are collecting subtables,
* some of them might be invalid and hence not collect; as a result,
* we might not fill in all the count entries of the subtables array.
* Zeroing it allows the set digest to gatekeep it without having to
* initialize it further. */
auto *thiz = (hb_ot_layout_lookup_accelerator_t *) hb_calloc (1, size); auto *thiz = (hb_ot_layout_lookup_accelerator_t *) hb_calloc (1, size);
if (unlikely (!thiz)) if (unlikely (!thiz))
return nullptr; return nullptr;